The answer is B- 124 degrees
When calcium reacts with water, the temperature changes from 18c to 39c is an exothermic reaction as energy is releasing and increasing the temperature.
<h3>What is an exothermic reaction?</h3>
Exothermic reaction are those reactions in which energy is released when a reaction completes.
An example is burning of wood.
Thus, when calcium reacts with water, the temperature changes from 18c to 39c is an exothermic reaction as energy is releasing and increasing the temperature.
Learn more about exothermic reaction
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Answer:
a new scientific discovery that benefits the environment
Glucose is carbohydrate and a simple sugar that is very important to the human body.
Energy is produced for the cells in the body through the process of metabolism which oxidizes glucose to water, carbon dioxide, and some nitrogen compounds.
The general chemical reaction equation for metabolism is:
C6H12O6 + 6O2 ---> 6CO2 + 6H2O
